摘要:
Provided is a radio formed to be capable of performing wireless communication with sensors, and configured to be connected, through one communication port via wired communication, to a slave control apparatus configured to be communicably connected to a master control apparatus with a predetermined communication method. The radio generates one communication packet formed with the predetermined communication method and transmitted from the radio to the slave control apparatus, such that pieces of measured data measured by the sensors are included in the one communication packet in accordance with a predetermined order in which the slave control apparatus or the master control apparatus can determine which sensor measured which piece of the measured data of the sensors, and the radio transmits the generated one communication packet to the slave control apparatus via wired communication. Accordingly, when a radio is introduced into a system constituted by a master control apparatus and a slave control apparatus in the FA field, the merit of radio usage is maximized.
摘要:
Un dispositif de multiplexage (1) destiné à être interconnecté avec au moins un dispositif du même type pour transmettre des signaux radiofréquences entre des moyens de traitement et une pluralité antennes, ledit dispositif étant caractérisé en ce qu 'il comporte un multiplexeur (3) pourvu d'une pluralité de sorties de multiplexage (5), une unité de commande (7) permettant d'activer l'une des dites sorties grâce à une composante de commande desdits signaux radiofréquences, et des moyens de couplage (9) entre l'unité de commande et une entrée (11) des signaux radiofréquences pour transmettre ladite composante de commande vers l'unité de commande. Une installation de surveillance comportant un tel dispositif. Une méthode de surveillance pour mettre en oeuvre une telle installation.
摘要:
The present disclosure relates to systems and methods for communicating with a radio frequency (RF) device. An exemplary method includes: listening, by the collector node, during a listening period, for a hailing signal from a plurality of RF devices on a hailing channel, the hailing signal including identification of a specified data channel; in response to receiving the hailing signal from one of the plurality of RF devices, switching to the specified data channel and receiving data, by the collector node, on the specified data channel; collecting, by the collector node, during a collecting period, data from the plurality of RF devices; and receiving, by the collector node, the data from at least one of the plurality of RF devices, wherein the listening period and the collecting period occur at different times.
摘要:
An isolator system is disclosed in which a pair of circuit systems is separated by an isolation barrier but engage in mutual communication by an isolator device that bridges the isolation barrier. A first circuit system may include a measurement system generating measurement data and status monitor generating status data. The first circuit system also may include a communication system that multiplexes the measurement data and the status data for transmission across a common isolator device. In this manner, the number of isolator devices may be reduced over conventional designs.
摘要:
An apparatus and method control transmission of messages over a fixed bandwidth link from fixed position communication devices to a central controller in a load management system. The messages include information relating to electric power consumption by power consuming devices located at service points that include the communication devices. In one embodiment, the central controller determines an identifier associated with each communication device, a reporting period during which the messages are to be transmitted by the communication devices, and transmission increments within the reporting period. The controller allocates each transmission increment to a respective group of communication devices. The controller then determines a transmission time for a message from a particular communication device based on the identifier for the particular device, a duration of a transmission increment allocated to a group of communication devices that includes the particular device, and a quantity of communication devices in the particular device's group.
摘要:
An apparatus and method control transmission of messages over a fixed bandwidth link from fixed position communication devices to a central controller in a load management system. The messages include information relating to electric power consumption by power consuming devices located at service points that include the communication devices. In one embodiment, the central controller determines an identifier associated with each communication device, a reporting period during which the messages are to be transmitted by the communication devices, and transmission increments within the reporting period. The controller allocates each transmission increment to a respective group of communication devices. The controller then determines a transmission time for a message from a particular communication device based on the identifier for the particular device, a duration of a transmission increment allocated to a group of communication devices that includes the particular device, and a quantity of communication devices in the particular device's group.
摘要:
A data collecting system (100) includes a data collecting device (2) and plural data processing devices (10) connected to the data collecting device (2) by a cascade connection. For example, each of the data processing devices (10) individually executes an A/D conversion and other data process, and adds data obtained by the data process to a data transmitting signal to transmit it to the subsequent cascade-connection data processing device (10) in sequence. The data processing device (10a) at the head of the cascade connection generates the data transmitting signal including a data processing period (Tp) and a communication period (Tdt) , and transmits it to the subsequent data processing device (10b, 10c). Each of the data processing devices (10) executes the data process in the data processing period (Tp), and transmits data obtained by the data process to the subsequent data processing device (10) in the communication period (Tdt) on the basis of the data transmitting signal.
摘要:
A method for suppressing mutual interference in optical sensors without additional control or installation requirement and a corresponding multi-sensor system are disclosed. The sensors (13) receive communication calls, by means of a bus (14), with which time windows for the transmission and receiving of light impulses are synchronised. Said multi-sensor system is provided with a control module, which serves for data exchange with the sensors (13) during the communication call by means of a bus (14), whereby a parameterisation of the sensors (13) occurs, by means of which the time windows are fixed.